Keyboard.



0. PBTERMANN.

KEYBOARD.

APPLICATION FILED MAY12. 19x1.

1,081,144. Patented Dec. 9, 1913.

n-uc n to'a Otta l%6 r/nann 3513/15 attozum v To all whom it may concern:

- citizen of the Republic of Switzerland, and a resident of Groton, county of Tompkins,' and State of New York, have invented certain new and useful 1m rovements in Keyollowinig is a lull,

UNITED STATES PATENT OFFICE.

OTTO IPETERMANN, 0F GROTON, NEW YORK, .ASSIGNOR T0 STANDARD TYPEWRITER GOMHANY, 9F @BUTQN, NEW YORK, A CORPORATION OF NEW YORK.

is YBOJARD.

l tldlglddn Be it known that I, OTTO PETERMANN, a

hoards, of which the clear, and exact description. I o

This invention relates more particularly to key-levers, and especially to key levers adapted for use in connection with i'oldahle front strike typewriting' machines.

Une of the principal objects of the invention is to'provide a key-lever which may be made in a single piece from light sheet metal, and which is so constructed that it will be very strong and at the. same time provide a substantial bearing itor each key integral bearings lever.

. Another object of the invention is to provide a key-lever having its body and bearing lugscorrugated and provided with extended pressed or formed from said bearing parts.

A further object of the invention is to provide key-levers which are so constructed that they may be arranged in banks or sets and be suspended from a-support, and which are so arranged that ,the type-bars may lie in a substantially horizontal plane with respect thereto.

.With these and other objects in view, the invention will be hereinafter more particularlydescribed with reference to the accompanying drawings, which form a part of this specification, and will then be pointed out in the claims at the end of the description.

In the drawings, Figure 1 is a longitudinal section of one form of machine showing one embodiment of my invention. Fig. 2 is a detail view of the blank forv one of the key-levers, the said key-lever being complete except that one of the'bearing part-s has not been bent over into alinement with the other bearing part. Fig. 3 is a detail plan view of one of the key-levers; and Fig. 4 is a transverse section through the bearing parts taken on the line IV-IV of Fig. 8.

While I show the invention as'applied to.

Specification of Letters Patent.

Application filed May 12, 1911. Serial No. 626,729.

Patented Dec. 9, 1913.

a particular form of machine inwhich the carriage and platen are adapted to fold forward, itwill be understood that the invention-may be applied to any of the various forms of typewriting or like machines.

The frame 10 may be of any suitable construction and mounted thereon is a support 11 on which is a carriage bed 12. A carriage 13 is adapted to travel along the bed 12, and rotatably held on said carriage is a platen 14. The support 11 may be formed of two parts pivoted together, as at 15, and one of these parts together with the platen and carriage may be folded forward over the key-levers, and said support as well as the carriage and platen may be moved vertically with the slides 16 or otherwise. At the rear of the frame are a plurality brackets 17, and pivotally held at 18 to these brackets are the type-bars'19, the latterbeing supported at the forward endon a curved bar or plate 20, and each type-bar being provided with a type-head having 5 suitable characters thereon for printing purposes. The parts thus far described may be of the usual or of any preferred construe tion.

A plurality of key-levers 21 are arranged 1n groups and each group or bank of levers is adaptecLto/be supported from one of the transversely"- extending rods 22. Each keylever has a substantially horizontally arranged body 23, a part of which may be angularly formed as at 24, and said angular portion may have an upturned end 25 in which is an aperture26. A link 27 has one end held in the aperture 26 and the otherend held to one of the type-bars 19' at a point adjacent'to but to one side of the pivot 18. Each keylever has its body corrugated lengthwise thereof, as by depressing the same substantially centrally thereof to form a rib 28, and this rib extends outward and upward conforming to the outer end 29 of the key-lever, on which end is a part 30 serving as a finger or key portion for said lever. The part 30 is formed from the same piece of steel or other metal as the body 23 and has a flange as 31 to receive the paper piece which indicates the character, a bol of I ster of paper or other material, the glass or celluloid disk, and the retaining cap usually employed in connection with key-levers. This part has a corrugation 31 extenda ing into the body a short distance which serves to materially stiffen the angle portion of said part. I v V The key-levers are each provided with a bearing lug 32 and a second bearing lug 33 which are spaced apart and connected to-.

gather by an integral bar 34. Thebearing ug 33 is located above the body of the key- I lever so that the said key-lever may be suspended from its support, as one of the rods 22, and said bearing lugs 32 and 33 form a suspendin head and are arranged in alinementas s own in Figs. 3'and 4 in such a way that the bar 34 will lie in a normally horizontal plane while in use. Each hearing lug is'provided with an aperture 35, and each aperture is formed by pressing or forming from each bearing In a bearing 36 ,which forms a substantia bearing surface for each bearing lug. These bearings 36 are annular in form and may project somewhat beyond the sides of the bearing lugs and outwardly therefrom, and around each bearing 36 is a depression forming a rib or corrugation 37. These annular corrugations are connected by a rib 38 which extends alo'n the connecting or spacing bar 34, and t e annular.

rib or corrugated part of the bearing lug 32 is connected to and forms a continuation ofthe corrugated rib 28 of the body of the key-lever, though it will be understood that.

instead of'the corrugations being formed as a single rib, they may be otherwise made as desired.

' in advance of the pivot of the key-lever, and

of the springl Each key-lever has an apertured lug 39 lo- 1 cated on the under edge thereof and slightly held in the aperture of said lug is one end 40, the other end of said spring being eld to a transversely-extend-- mg bar or plate 41.

From the foregoing, it will be seen that a very strong, light key-lever isprovided which may be made of a single piece of sheet steel or other metal; that by forming.

.the bearing lugs with the extended annular bearings, a'bearin surface much greater in extent than thethlckness of the material is provided for each key-lever; that said keylevers ma be arranged in banks or sets;

" that said ey-levers may be utilized to selfspace the same, and that said key-levers may be readily and cheaply made.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent 1. In a-typewriting machine, a key-lever havm a body provi ed with a rib lengthwise ereof, two alined bearing lugs arand extended portion an comprising a bearing lug extending born ranged above said body, and integral bearings rojecting from said bearing lugs.

2. In a typewriting machine, a key-lever having a corrugated bod and twoalined integral and sus ending earing lugs each havin an exten edintegral bearing. 3. a typewriting machine, a key-lever having a-corrugated body, and integral cor? I rugated and suspending bearing'lugs.

' 4. In a typewriting machine, a key-lever formed of a single piece of metal and comprising a thin sheet metal body provided with an angular end for attachment to a type-bar and itsv other end provided with means as a key portion for said lever, bearing lugs located above the body, a bar projecting from one hearing In so on one ads:

of the body for spacing sai bearing lugs apart, said bearing, lu s having extended bearings pressed t ere om, an corrugas tions extending along the body portion, the bearing lugs and the spacing bar. 1

5. In a typewritin machine, a key-lever having a sheet metal yportion provided with an end for attachment to a type-bar and its other end provided with means as a key portion for said lever, bearing lugs,

and a bar for spacing pressed therefrom.

6. In a typewriting machine, the comsaid bearing lugs, said bearing lugs havmg annular bearings bination with a transverse rod extending across the machine, of akey-lever having an extended body and provided with an integral suspending head having apertured and spaced bearing lugs connected together and arranged intermediate the ends of the body and fitting over said rod, said keylever being provided with a corrugated body.

made of a smgle piece of metal having a substantially horizontallyextending body an integral suspending head one edge of the lever body and provided with an aperture, an integral reach and and tally arranged body and a suspending head" located between the ends of said b0 7. In a typewritingmachine, a key-lever. v

having spaced and apertured bearing lugs connected together.

.9. In a typewriting machine, a key-lever I having anintegral suspendmg head provided with spaced bearing lugs, a bar. con-- necting said lugs, and extended annular bearings pressed from said bearing lugs.

10. In a typewriting machine, a key-lever Etfifilhdtt a corrugated suspending head located between the ends of said body.

This specification signed and witnessed this 8th day of May A. D. 1911.

UTTO PETERMANN.

having a corrugated body and an integral corrugated suspending head located intermediate the ends of said body and comprisingotwo lugs spaced apart, and a bar connecting said lugs and projecting from one side only of said body.

11. In a typewriting machine, a key-lever having a corrugated body and an integral Witnesses:

Lnomn M. BAcKUs, G. '11. Guns.

fioptes of. this patent may be obtained for five cents each, by addressing the Gommissioner of Patents,

Washington, D. 0. 

